i5-2405S vs A8-6600K
Aggregate performance score
Core i5-2405S outperforms A8-6600K by a small 7% based on our aggregate benchmark results.
Primary details
Comparing A8-6600K and Core i5-2405S processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 1966 | 1905 |
| Place by popularity | not in top-100 | not in top-100 |
| Cost-effectiveness evaluation | 0.29 | 0.10 |
| Market segment | Desktop processor | Desktop processor |
| Series | AMD A-Series (Desktop) | no data |
| Power efficiency | 1.79 | 2.96 |
| Architecture codename | Richland (2013−2014) | Sandy Bridge (2011−2013) |
| Release date | 1 June 2013 (11 years ago) | 22 May 2011 (13 years ago) |
| Launch price (MSRP) | $142 | $472 |
Cost-effectiveness evaluation
Performance per price, higher is better.
A8-6600K has 190% better value for money than i5-2405S.
Detailed specifications
A8-6600K and Core i5-2405S basic parameters such as number of cores, number of threads, base frequency and turbo boost clock, lithography, cache size and multiplier lock state. These parameters indirectly say of CPU speed, though for more precise assessment you have to consider their test results.
| Physical cores | 4 (Quad-Core) | 4 (Quad-Core) |
| Threads | 4 | 4 |
| Base clock speed | 3.9 GHz | 2.5 GHz |
| Boost clock speed | 4.2 GHz | 3.3 GHz |
| Bus rate | no data | 5 GT/s |
| L1 cache | 192 KB | 64 KB (per core) |
| L2 cache | 4096 KB | 256 KB (per core) |
| L3 cache | 0 KB | 6 MB (shared) |
| Chip lithography | 32 nm | 32 nm |
| Die size | 246 mm2 | 216 mm2 |
| Maximum core temperature | 74 °C | 69 °C |
| Maximum case temperature (TCase) | 74 °C | no data |
| Number of transistors | 1,178 million | 1,160 million |
| 64 bit support | + | + |
| Windows 11 compatibility | - | - |
| Unlocked multiplier | + | - |
Compatibility
Information on A8-6600K and Core i5-2405S compatibility with other computer components: motherboard (look for socket type), power supply unit (look for power consumption) etc. Useful when planning a future computer configuration or upgrading an existing one. Note that power consumption of some processors can well exceed their nominal TDP, even without overclocking. Some can even double their declared thermals given that the motherboard allows to tune the CPU power parameters.
| Number of CPUs in a configuration | 1 | 1 |
| Socket | FM2 | FCLGA1155,LGA1155 |
| Power consumption (TDP) | 100 Watt | 65 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by A8-6600K and Core i5-2405S. You'll probably need this information if you require some particular technology.
| Instruction set extensions | no data | Intel® SSE4.1, Intel® SSE4.2, Intel® AVX |
| AES-NI | + | + |
| FMA | FMA4 | - |
| AVX | AVX | + |
| PowerNow | + | - |
| PowerGating | + | - |
| VirusProtect | + | - |
| Enhanced SpeedStep (EIST) | no data | + |
| Turbo Boost Technology | no data | 2.0 |
| Hyper-Threading Technology | no data | - |
| Idle States | no data | + |
| Thermal Monitoring | - | + |
| Flex Memory Access | no data | + |
| FDI | no data | + |
| Fast Memory Access | no data | + |
Security technologies
A8-6600K and Core i5-2405S technologies aimed at improving security, for example, by protecting against hacks.
| TXT | no data | - |
| EDB | no data | + |
| Identity Protection | - | + |
Virtualization technologies
Virtual machine speed-up technologies supported by A8-6600K and Core i5-2405S are enumerated here.
| AMD-V | + | - |
| VT-d | no data | - |
| VT-x | no data | + |
| EPT | no data | + |
| IOMMU 2.0 | + | - |
Memory specs
Types, maximum amount and channel quantity of RAM supported by A8-6600K and Core i5-2405S. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR3-1866 | DDR3 |
| Maximum memory size | no data | 32 GB |
| Max memory channels | 2 | 2 |
| Maximum memory bandwidth | no data | 21 GB/s |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card Compare | AMD Radeon HD 8570D | Intel HD Graphics 3000 |
| Number of pipelines | 256 | no data |
| Quick Sync Video | - | + |
| Clear Video HD | no data | + |
| Enduro | + | - |
| Switchable graphics | + | - |
| UVD | + | - |
| VCE | + | - |
| Graphics max frequency | no data | 1.1 GHz |
| InTru 3D | no data | + |
Graphics interfaces
Available interfaces and connections of A8-6600K and Core i5-2405S integrated GPUs.
| Number of displays supported | no data | 2 |
| DisplayPort | + | - |
| HDMI | + | - |
Graphics API support
APIs supported by A8-6600K and Core i5-2405S integrated GPUs, sometimes API versions are included.
| DirectX | DirectX® 11 | no data |
Peripherals
Specifications and connection of peripherals supported by A8-6600K and Core i5-2405S.
| PCIe version | 2.0 | 2.0 |
| PCI Express lanes | no data | 16 |
Synthetic benchmark performance
Various benchmark results of the processors in comparison. Overall score is measured in points in 0-100 range, higher is better.
Combined synthetic benchmark score
This is our combined benchmark performance rating. We are regularly improving our combining algorithms, but if you find some perceived inconsistencies, feel free to speak up in comments section, we usually fix problems quickly.
Passmark
Passmark CPU Mark is a widespread benchmark, consisting of 8 different types of workload, including integer and floating point math, extended instructions, compression, encryption and physics calculation. There is also one separate single-threaded scenario measuring single-core performance.
GeekBench 5 Single-Core
GeekBench 5 Single-Core is a cross-platform application developed in the form of CPU tests that independently recreate certain real-world tasks with which to accurately measure performance. This version uses only a single CPU core.
GeekBench 5 Multi-Core
GeekBench 5 Multi-Core is a cross-platform application developed in the form of CPU tests that independently recreate certain real-world tasks with which to accurately measure performance. This version uses all available CPU cores.
Pros & cons summary
| Performance score | 1.89 | 2.03 |
| Integrated graphics card | 1.12 | 0.66 |
| Recency | 1 June 2013 | 22 May 2011 |
| Power consumption (TDP) | 100 Watt | 65 Watt |
A8-6600K has 69.7% faster integrated GPU, and an age advantage of 2 years.
i5-2405S, on the other hand, has a 7.4% higher aggregate performance score, and 53.8% lower power consumption.
Given the minimal performance differences, no clear winner can be declared between A8-6600K and Core i5-2405S.
Should you still have questions on choice between A8-6600K and Core i5-2405S, ask them in Comments section, and we shall answer.
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